Spring winder



Allg. 8, G H. BABCOCK SPRING WINDER Filed May 7, 1931 lfihlllllllll" @y4. /g @Kvm UNITED; PATENT v "1,921,600 I d "l M 1 SPRING WIVNDEItK i,Geol-gell. Babcock, ChicagoQIll. 'i Y `ApplicetionMeyve1931- serialNdsa'zs l z claims. '(ol. 15s- 64) `l d I My invention `relates tospring Winders', and With holes 21'above and below the centerline moreparticularly to those which are operated, for 'the selectiveapplicationof wire-anch'oring'` by hand, and lhas for its object to provide `a`means, the-frontal ends of the holes being enmachine which is of compactand rugged con-- larged with circular surface recesses 21a. The, Y 5Vstruction, and is suitable Vfor both light and 'wire-aliahoringmeanscomprises av :bolt 22 d i- 60 heavy springs.. i i v e Y rected` througheither hole 21to .receive awasher O ther `obje'ctswill occur in the.descriptionrto 22d vand wing, nut22b on the rear side `of the follow,reference being had tol the` accompany- Wall 14. The shanlz'of the boltreceives awasher ingdrawing, in which 22C immediately behind the head22d and then. Fig. 1 is a front elevationof the Winder show# adiametrical perforation 22e-of aIsiZesufiiQient 65 ing the manner of`its use; f 1 u 1 r ly large to receive the largest gage of `wire, for;

Fig. 2 is'a plan View; i vwhieh thefmaehi'ne is suitable. VA-2 vvi12v3fis Fig. 3 is a view from the right-hand side of Shown passed throughthe bo 1 t 22, the `latter `.`r3ig. 1; and being applied to thenpperhole21.` By tighten- 15T v :Fig 4 is a fragmenten and magnied plan ing thewing nut 221),V thebolt yisdr awn .up Vto 70e* Section of a pitch gageconnection.` j i plessvand slightly flex the wire inthe surfaceIRilfel'ring SpeCicallyYto-the drawing, 10^de -1ecess 21d,holding thesame under-tension. Y Y' notes the base of the winder which is'prefer'The Wire Which has been SGGUIed by ,the terllablyA of cast iron anddesigned fof supportlcn av S0I1 bv01tv22 PBSSGS alOIlg the W2311114` t0a D051--l Lbench, table or vother horizontal objectlll.V Thel tionlopposite the hiibV off-thelcrank handle 1-9 75:` v base is extendeddownwardlyl andprovided with 'Whereit takesa s hortforwardbend' -23a'toenter a clamp 12,` operated by a screw ,1 3 for securing' a vbay-ity`19h in the said hub.` A` The- 1at15- is the Winder rmly to` the benchoretable. The reinfOlCed at this P01111; as indicated; at 19o and beseis also extended yupv/army,wana front receives a thumbscrew24dre'0ted'int0 the Cavy 25Jwe11 14 end a sidewall15,.1theseweus'eorineetf ity to clamp the said bend, so that theclockeeding to forma right-angle; and the frontwal-LY w'serotation; of theClankhndle Will drawthe v being a continuationY of the clamp 12.*Theone- `Wire-21nd Wind" it' ,around the mandrel BJQCOId piece developmentof the base with vthe' forma lgly. Similarly, When the 1361151011119113,15112051:`

Ntions mentioned lendsv the @structure ample/'timedin; th10WeT-hQ121 theWife VVextends 3 glstrengthl rigidity and-'compactnessfor the purunderthe :mandrel and mayfbei'wound in- "ia' '785-1 poses 'of its use. g n l`counterclockwise directiorn i e i y i Theside -wali 115r is thickenedon its inner To Secure the desired spacing; of thel'wire side, asindicated/at 15a, and tapped to receive; C0115, angadjllstabk gagemember Preferablyuupper and lower horizontal thumbscrews 16 from Ca11d aY91150111' gage. `S vUsed; This deVClS Ya Athe outside, L'these,carrying a plate 17 behind .Veltcdlfleel Plate 25r plaCed forwardlyjdfthe 90 the heads 16a `The plate is adapted to be ad` Wall 14 andcut'with ya vertical slot 25a for the .l vanced toward the wall 15 bythe manipulation application. 0f 'a bOli? 26 to `Secure the plate to fof the screws 16, and is sunken at 15b in its the said wall. The frontendfof the slot is en- Y `outer face to permit anextra amount'of travelIME-58d With a facial Cavity 2517111 which theV 4-1by the plateA 17. Theweil 15 is a1so'siinken in heard 26a0f thebolt lies vushlinthe Shank,Y0f 95? Y its outer face with a horizontal Vgroove 15C the b ltbengpanfas it Passes thought'he which is designed as a seat for a mandrelrod Plate 25 and d Washer 2'1 betWQen. the latte!" 18. The latter ispressed to its seatby the adand the Wall 14- Then the Shank ssomewhatyance of the plate 17, and the extra travel of TedllCed ldnd threaded t0DaSSn through a horithe latteras previously Ymangioned pefmts zontalslot 14a in the Wall 14, receive agwasher'lOO Contact by the'plate witha mandrel of a small- 28 bridging 011 S10U, and 1111811 a Wing nut 29#er diameter than the depth of the Vegroove. The plate Can t11115 beSe'CuTed't'O theewll 14, Yelv The mandrel 18 is typical of hand-typespring` s930601 amply theffIOm 120, allOW ,the passage, f winders andreceives a cranle handle 19 `on its" 0f the Wfe 23 between the Plateandthe Saidf `front end. The aperture 19a in the handleiis Wa11 f Y -ip; t.

sufficiently mrge te receive `mandrels of dif-V The Side portions 0f.theplate 25 are tapered Q ferent diameters, and the mandrelis clampedto 259 Veltally TOIIIhe lfIOn'al SQCOO' gradually the crank handle by aset screw 20. meet the rear face, in themanner ofa wood'- The mandrel isLset at centerl height with re` chiselpoint. 'Betweenthe taperedportions, the lid' vlationto the Vwall 14, and thelatter is made frontalsurfaces oithe'plate-adjacent the cavity j 3 yi' f shown. `orround-side-up. Ahorizontal nick 26h is made inthe face of the bolt head26a to serve as an origin line relative to the pitch gage gradi nations,as indicated by dotted lines in Fig. 2.

' It is now'apparent that the plateV 25 is used as a pitch-gage for thespring tor be Wound by spacing the coils as they arc made along thattapered edge which is proximate to the mandrel 18; and the pitch orspacing of the spring may be varied by changing fthe height of thepitchgage to lend the said edge a diierent degree of prominence,suchchanging lbeing feasible when the yWing nut 29 is released Aorremoved. Y

To use the novel spring Winder for making closely vwound springs, suchas of the expansion type, the pitch gage is adjusted laterally toA allowampleclearance for the free and close Winding of -thewire on themandrel; and the wire is 30 anchoredin the upper position, as shown, ifa left-hand-Wound spring is desired, or in the lower position if thespring is to be right-hand- Wound. For compression or torsion springs,the same procedure isused at the beginning in order to make the end ofthe spring squared and the iirsty two coils closely Woundfor rigidityThen,

a slight reverse movement of the mandrelA isV permitted to release thetension' of the spring, the pitch gage then being moved into contact4.0" With the mandrel as shown. It is now seen thatv the coils ofthespring will be spacedV according.

r can'be drawn forward by means of the crank 1 JOJhandle 19 to leave thespring free for removal.

It Will vbe seenthat the novel spring Winder is an article of ruggedbuild and small size, giv ing it the strength to. handle heavy Work andenabling it to be attached or mounted' Where a lsmall amountof room isavailable. The relation l of the anchoring point of the 'Wire and thewinding zone is so closefand direct that the Winding as heavy as -inchand even l-inch is feasible by reason of the heavyconstruction of themachine and the favorable leverage of the crank handle 19, doing awayWith the necessity of using a machine type of Winder for springs asheavy as the sizes mentioned. It is significant that the'wire Ahas adirect path from either anchoring position behind the pitch gage 25, soas not to interfere With or be impeded by the latter. The pitch gage issimply mounted and firmly attached at any vertical or lateral adjustment, and its adjusting means is in the Vrear and out of the Way ofthe crank handle or its set screw 20. It must be noted that the frontalface oi' the pitch gage forms a backing for the crank handle and thesuccessive coils of the springs :as theyappear in front of the gage,rhence there should be nothing in the gage mechanism to interfere Withthe'backing function of the gage and yits immediate proximity to thecrank handle. Further, it is seen that the` friction securing means forthe mandrel arerofA ample area to prevent any deviation in the positionof the 100 kmandrel, and thethumb screw adjustment for this unit isoutof the Way of 'the crank handle, yet easily accessible` formanipulation. Finally, it is apparent that the device is of a designWhich does not require'extreme accuracy in any `part 105 except in thedesign and Vgraduation-'of the pitch gage, so that expensive 'materialsand methods of manufacture are not required.

1 claim:- v 1. A spring Winder includingl a Yfrontal, wall,` means forsecuring a mandrel across one end thereof, the wall beinghorizontally-slotted, a vertically-slotted pitch-gage opposite the Wall,and'attaching Vmeans between the pitch gage and the Wall, saidattaching'v means passing through 115.

the slots in these. parts and being .adjustable for vertical andhorizontal 'changes in the position of the' pitch gage relative toV themandrel.

2f A `spring Winder including a frontal Wall, means for securingamandrel across one end thereof, a pitch gage opposite the Wall and havev ing Vvertical and similarly tapered portions at its sides, andattaching means Abetween the medial portion ofthe pitch gage and thewall, the pitch gage beingrrot'atable about said at-Y 25 taching meansto inverted positionywhereby it presents a reversal of taper in theportion op-Y posite the mandrel on each change of position.

' GEORGE BABCOCK.

